Pteriodophytes are called vascular cryptogams , because they are non - seeded plants containing
xylem and phloem
only xylem
only phloem
neither xylem nor phloem
Differentiation of vascular tissue in pteridophyta -
In xylem, true vessel are absent, tracheids present.
In phloem, companion cell and sieve tubes are absent, instead sieve cell are present.
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Pteridophytes are regarded as most primitive and living vascular plants